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Device keys need to prove possession with non-exportable key material on every accepted signing flow. Windows should use the platform TPM-backed key provider instead of a software secret store or keyring-style storage, so the private key stays behind the OS crypto boundary. - Wire the device-key crate's default provider to a Windows-specific implementation on Windows. - Create and open persistent ECDSA P-256 keys with CNG's Microsoft Platform Crypto Provider. - Export the public key as SPKI DER by converting the CNG ECC public blob to SEC1 form. - Sign the accepted payload digest with NCrypt and return DER-encoded ECDSA signatures. - Preserve the hardware TPM protection class and fail create/load/sign when the platform provider or key is unavailable. - cargo test -p codex-device-key - cargo check -p codex-device-key --target x86_64-pc-windows-msvc - just fix -p codex-device-key - git diff --check
npm i -g @openai/codex
or brew install --cask codex
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Install globally with your preferred package manager:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.